Expanding your website into new languages is one of the highest-leverage growth moves you can make. Localized websites build trust with international visitors, rank in local search results, and convert at significantly higher rates than English-only alternatives. But localization is more than running your pages through a translator — it requires planning across content, design, SEO, and technical infrastructure.
This checklist walks you through 15 essential steps to take your website multilingual the right way.
The 15-Step Website Localization Checklist
1. Choose Target Languages Based on Analytics Data
Do not guess which languages to add. Check your analytics for the top countries and languages driving traffic. Look at bounce rates by region — high bounces from non-English countries often signal demand you are missing. Prioritize the two or three languages that represent the most untapped revenue.
2. Audit Existing Content for Translation-Readiness
Before translating, review your source content. Remove cultural idioms, slang, and humor that will not translate well. Ensure your English copy is clear and concise — vague or overly creative source text produces poor translations in every language.
3. Set Up Your URL Structure
You have three main options for multilingual URLs:
- Subdirectories (example.com/es/) — easiest to manage, shares domain authority
- Subdomains (es.example.com) — more isolation, treated as separate sites by Google
- Country-code top-level domains (example.es) — strongest geo-targeting signal, highest maintenance cost
For most businesses, subdirectories are the best balance of simplicity and SEO benefit.
4. Implement Hreflang Tags
Hreflang tags tell search engines which language version of a page to serve to which audience. Every localized page must include hreflang annotations pointing to all its language variants, including a self-referencing tag. Missing or misconfigured hreflang tags are one of the most common multilingual SEO mistakes.
5. Create a Glossary for Brand Terms
Before any translation begins, compile a glossary of terms that must be translated consistently — brand names, product features, technical terms, and calls to action. Share this glossary with translators and configure it in your translation tools.
6. Translate Page Content
Translate all visible page content: headlines, body copy, calls to action, image captions, and testimonials. Prioritize your highest-traffic pages and conversion-critical paths first. Use AI translation engines for speed, then review the output for accuracy and natural phrasing.
7. Translate SEO Metadata
Page titles, meta descriptions, and image alt text must be translated — not just the visible content. These elements directly affect how your localized pages rank and appear in search results. Keyword research in the target language is essential because direct translations of English keywords often miss the terms people actually search for.
8. Adapt Images and Media for Cultural Relevance
Review images, illustrations, and videos for cultural appropriateness. Swap out culturally specific imagery, ensure text embedded in graphics is translated, and verify that color choices do not carry unintended meanings in target markets.
9. Translate Navigation, Footer, and UI Elements
Users expect a fully localized experience. Translate your main navigation, footer links, breadcrumbs, button labels, and any persistent UI text. Partially translated interfaces erode trust.
10. Localize Date, Currency, and Number Formats
Dates, currencies, phone numbers, and measurement units must follow local conventions. A date displayed as "03/31/2026" is confusing in markets that use day-first formatting. Use locale-aware formatting libraries to handle these automatically.
11. Translate Forms and Error Messages
Every form on your site — contact forms, sign-up flows, checkout — needs translated labels, placeholders, validation messages, and error states. An untranslated error message during checkout is a conversion killer.
12. Set Up a Language Switcher
Add a visible, accessible language switcher that lets users change languages without losing their place. Best practice is to display language names in their native script (e.g., "Espanol" not "Spanish") and place the switcher in the header or footer where users expect it.
13. Test Translated Pages for Layout Breaks
Translated text is often 20-40% longer than English. German, French, and Spanish all tend to expand. Test every page for layout issues: overflowing buttons, truncated headlines, broken grids, and misaligned elements. Right-to-left languages like Arabic and Hebrew require additional layout testing.
14. Submit Localized Sitemaps to Google Search Console
Create separate sitemap entries for each language version of your pages and submit them to Google Search Console. This accelerates indexing and helps Google understand your site structure. Include hreflang annotations in the sitemap as an additional signal.
15. Monitor Performance Per Language in Analytics
After launch, track key metrics per language: traffic, bounce rate, time on page, and conversions. Set up segmented dashboards so you can quickly identify which languages are performing well and which need content or UX improvements.
Common Mistakes to Avoid
- Translating everything at once — start with high-impact pages, then expand
- Ignoring local SEO — translated content needs localized keyword research
- Using flags for language switchers — flags represent countries, not languages
- Forgetting to translate dynamic content — error messages, tooltips, and pop-ups are often missed
- Never updating translations — source content changes; translations must keep pace
Tools That Help
The right tools make localization manageable at scale. Adara Translate offers several features that streamline the process:
- Document translation for bulk page content in PDF, DOCX, and other formats
- Built-in glossary to enforce consistent terminology across all engines — learn more in our glossary vs translation memory guide
- Multi-engine support so you can choose the best engine for each content type
- Chrome extension for translating directly on your CMS or website builder
If you're localizing a WordPress site specifically, follow our WordPress translation guide. Explore all our translation use cases for industry-specific workflows.
Frequently Asked Questions
Should I use machine translation or hire translators?
For most web content, AI translation engines produce excellent results, especially when combined with a glossary and human review of key pages. Use professional translators for legal, medical, or highly creative content where nuance is critical.
How do I handle SEO for multilingual sites?
Implement hreflang tags, translate metadata and URL slugs, perform keyword research in each target language, and submit localized sitemaps. Do not rely on auto-translated keywords — search behavior varies significantly across languages.
What is the best URL structure for multilingual sites?
Subdirectories (example.com/fr/) are recommended for most businesses. They share domain authority, are easy to manage, and are well-supported by all major CMS platforms and analytics tools.
How often should I update translations?
Whenever your source content changes. Set up a workflow that flags source page edits and triggers re-translation of affected sections. Quarterly audits of translated content help catch drift and quality issues.
